Remove empty 'internals' page

The file is empty and not linked from anywhere, resulting in
a warning when building the docs.

Change-Id: Ib995d094ef525496fe8b2a369e0a0c5b4c7bd2dd

diff --git a/docs/dev/internals.rst b/docs/dev/internals.rst
deleted file mode 100644 (file)
index e69de29..0000000